Motor



Feb. 3, i925.

W. H. GREENLEAF MOTOR Filed' 'July 10, 1922 @Vf/ym? WTO/17mi- Y PatentedFeb. 3, 1925. Y

UNITED STATES PATENT OFFICE.

WILLIAM H. GREENLETAE, or HARTFORD,- commencer.

Moron.

Application :filed July 10,

To all whom z' may concern.'

Be it known that I, WILLIAM H. Gamarr- LnAr, a citizen of the UnitedStates, residing at Hartford, in the county of Hartfordk and State ofConnecticut, have invented certain new'and useful Improvements inMotors, of which the following is a specification.

This'invention relates to a motor. The energy for effecting the actionof the motor may be of any proper nature although electricityisgenerally utilized for the purpose.

' In like fashion the motor can be advantory manner.

l to this' disclosure.

tageouslyemployed for a variety of diierent things, although I havefound the motor especially effective as the energy for Operating atime-piece. v

.Among the objects of the inventionis the provision of a device of theclass set forth which is quite simple in construction and which ispositive, yyet automatic in action and which will 'cause a result atstated intervals, suchforjinstance as in the illustration given foroperating a time-piece whether in the form of a clock or otherwise.

In thedrawing accompanying and forming part of the presentspecification, I have shown in detail one of the many forms ofembodiment of the invention which to enable those skilled in the art topractice the same will be setyforthfully in the following description.Obviously, I am not restricted I maydepart therefrom in a number ofrespects within the scope'of the invention defined by the claimsfollowing said description. y

' Referring to said'drawing:

Figure 1 is a horizontal sectional plan view. on the line 1-1 of Fig. 2looking down.l

Fig. 2 is a side elevation. Fig. 3 -is a top plan view.

Fig. 4 is a view somewhat similar to Fig. 1, but with the. parts indifferent positions' 1922-. serial No. 574ml.

through the influence of the -motor and in turn the latter may beutilized for a large number of purposes, having been found particularlyuseful as an adjunct in a timepiece. The various parts of the motor maybe sustained in any suitable manner as by the frame denoted in a generalway by 2. This frame generally consists of two plates or disks 3 and 4which are in practice virtually in exactregister and which are connectedby'pillars or columns 5 and 6. The

disk 3 constitutes a base disk, the complement of disk presenting acrown disk. Assooiated with the framing is a second framing such as thatdenoted in a general way by 7 and, which may sustain, for instance, a

springt which .represents the auxiliary spring t of the appliance andwhich may function for operating clock work or any other propermechanism. The second framing 7 consists as shown of disks or'platesSand 9 spaced apart as the other disks 3 and 4; and supporting betweenthem a spring barrel-10 which houses within' it a helical spring asfound in clocks and time-pieces generally. Through the lspringof thebarrel 10 is extended the arbor 11 to which one end of the spring in thebarrel is connected, the other end of the spring being fastened to thecircumferential portion of the barrel.

The arbor 11 as shown' has fastened to its upper or inner end the spurgear 12 in mesh.

with a pinion 13 concentric and'rigid with a ratchet wheel 14. It issustained practically centrally upon the inner face of the disk or plate3 as shown best in Fig. 2.f Between the disks or plates 3 and 4t ismounted an electromagnet comprising as shown the coils 15 and 16'connected electrically as by the Wire 17.

As already noted the electrical energyy may be supplied in anyconvenient manner as by the battery 18 shown in both Figs. 1 I

and 3. One of the terminals of this battery is oonnectedas by the Wire19 with the magnet 15. From the other terminal of the battery a wire20leads and has a ground connection with one of the plates 3 or 4)..

The armature for the two coils 15 and 16 is denoted by 21 and ispractically ofl elbow form being supported pivotally, as at 22, atits-elbow for oscillation. The'upper or longer arm of the angulararmature 21 coacts directly with both magnets 15 and 16 as shown forinstance in Fig. 1. The

outer arrh, 0r branch of the angle lever has .21. 'This body 28 as shownhas-'a rigid hook 29 around which is engaged a terminalotl a. spring 30,the other end of the spring -being connected practically similarly w-itha hook 31 on the body or shank`32 of the detent or dog 3 3, this detent33 like the pawl `27 being (3o-operative with the circumferential teethofthe ratchet 'wheel 14 which,

y it will be remembered, has an operative con- --nection with the arbor11.

Between the contactor 26 and the .body or shank 32 I interpose a-pract1cal1y U`shaped spring 34, one branch or arm of 'which is bentaround the upper end of the pillar 35 which extends between the plates 3and 4 and the other branch of which is hooked into a `V-shaped notch36at the end of the *lug or ear-37 which extends from the' short arm38`which projects from the shank or body of the contactor. 26. Saidcontactor 26 as shown is mounted for swinging or oscillatory movement,being pivoted at 3 9 between the two plates or disks and 4. The -pivot39 is practically in the form of a spindle extending between and sup-`-ported jointly by the plates or disks 3 and 4 and is.surrounded asshown by 'a coiled spring 40 which exerts a constant upward prt-:mureagainst the bpdy 'of the contactor Y 26 to maintain it in operativerelation. The

arm 41 at the upper end of the contactor has'two portions or 4branches42and 43, the slot or space between them .being denoted by 44. x l

It will be assumed that the parts are con- /nected up as illustrated inthe various views and that the disks or plates8 and 9-with theintermediate elements are not present.

In this event, the action would be as follows: i

tion and with lcontacts 45 and 46 in circuit closed position. Thisallows -the energy from battery l8-to energize coils 15 and 16 therebydrawing the armature .21 toward the face of magnets 15 and 16 similar toposition as shown in Fig. 4. This action tensions the coil spring 30 andcauses the pawl 27 to engage a fresh tooth in.' the ratchet 14. Whenarmature' 21has approximately reached the limit of forward move- 4mentthe p in 25 in amature extension 23 being understood .that when thespring In Fgig. 1 the motor is shown with the armature 21 in forward. orextended posiengages the inner face of branch 42 of contactor 26 causingit to move .to position as shown in Fig. 4 or circuit open position. Themovement of the mechanism now allows the armature 21 to be again drawnaway fromv the .face of magnets 15 and 16 until the positionfas shown inFig. 1 is again It will be noted theU-shaped spring 34 causes thecontactor 26 vtofmove rapidly for snap into position when closingcircuit.' This 1s accomplished by the contactor mov-.

ing forward of. the center line between pivots 35 and 39. When vthecontactor moves to circuit open position as shown in Fig. 4,

reached, where the operation is again repeated. 7

the U-shaped spring causes the contactor to remain positively in circuitopen position.

The main spring ofthe clock mechanism is situated in the barrel 1 '0 andone end thereof has a fixed connection with the arbor 11 which as willbe 4understood extends cen-v trally through the barrel.. To this barrel10 is fastened the spur gear, 50, in mesh with the barrel pinion 51, onthe arbor 52. The

parts describe-d partly are quite commonin clock mechanisms of variousstyles and therefore require no extended description, it

1n the barrel 10 is'wound up or tensione it aords, by reaction, thepower necessary to actuate the clock work mechanism and thisl clock Workmechanism or something 'of' an equivalent nature 'may in fact be part ofa time-piece or may constitute equipment in connection with any othermechanism.v As a matter of fact, the spring barrel 10 and the' partsassociated with it between the disks or plates 8' and 9, may in somecases be altogether omitted. The main springof the appliance is thecoiled spring 30 shown clearly in Figs. 1, 2 and 4, the spring withinthe barrel 10- constituting a secondary ,or auxiliary spring. Y

When the spring withinthe barrel 10 is woundup to the desired extent,apin asl53 on the arbor 11 willstrike va. pin as 54 on ooi the spur gear50, thus preventing'further winding of'the auxiliary spring'within thebarrel 10. For the purposes of my construction,the spring within thebarrel 10 is considered an auxiliary spring although it is trueA that invaftime controlledmechanism where such a spring is present, it isgenerally known as the mainmspring When the pin* 53 strikes the pin orstop 54, the auxiliary spring Within the barrel 10 can be wound nofurther; Beyond this point thecoiled spring 30doeslintermi'ttently'function in the manner I'have already explained.

It is 'obvious that inthe event, the motive power ,or electrical currentwere disconnected, the reaction of the auxiliary spring in the barrel 10would cause .the clock mechi anism-or such other mechanism as might beconnected, to continue to function for a period of time equal to theunwinding of the auxiliary spring.

It will'be remembered that I have described the Jframing 2 as comprisingtwo spaced or separated plates or disks 3 and 4c. The parts between theplates, have been described somewhat in detail. I iind that I can secureexcellent results by having one of sucl. plates of non-magneticmaterial, and this I prefer to accomplish by having the plate c; disk 4of such substance and brass answers satisfactorily my The complementalpla-te 3 may be of iron, steel or other substance and naturally may bemagnetic.

The coils 15 and 16 of the magnet have associated with them, base andcrown plates and I have found thatone of these plates desirably shouldbe of non-magnetic material. -For example, the base plate of the coilsmight. be of iron, steel or equivalent magnetic mate-rial while thecrown plate would be of non-magnetic material such as brass. The platesof the two coils 15 and 16 are rigidly mounted between the plates 3 and`What I claim is:

1. An appliance of the character described comprising electric circuitinvolving requirements.

a magnet, having an armature, a circuit controlling element operable bythe armature, a terminal on the magnet having a flat face, the circuitcontrolling member having a portion provided with a iiat face, to engagesaid other face to close the circuit.

2. An appliance of the character described comprising an electriccircuit involving a magnet having an armature, a circuit controllingelement operable by the armature, and means acting constantly to impartsuccessive opposite accelerated movements to the circuit controllingmember after the movementthereof has been initiated.

3. An appliance of the character described comprising an electriccircuit involving a magnet having au armature, a circuit controllingelement operable by the armature and meansacting constantly to impartsuccessive opposite accelerated movements to the circuit controllingmember after such movement has been initiated independently of saidmeans.

In Itestimony whereof, I hereby aix my signature.

WILLIAM H. GREENLEAF.

Witnesses:

ELIN C. GARDELL, HEATH SUTHERLAND.

